Sky This Month: September 2023

Peak viewing season for the giant planets continues. Saturn is visible all night, at its best in the late evening. Jupiter rises later and dominates the early morning. Neptune reaches opposition near a 5th-magnitude star — grab binoculars to catch the best view of 2023. Uranus hovers between the Pleiades […]

Where is the edge of the universe?

Jay Smith When Galileo Galilei pointed his first telescope to the heavens in 1610, he discovered “congeries of innumerable stars” hidden in the band of light called the Milky Way. Our cosmos grew exponentially that day. Roughly three centuries later, the cosmic bounds exploded once again when astronomers built telescopes […]

Understanding the phases of the Moon

The Moon, Earth’s nearest celestial neighbor, has fascinated humanity for ages with its ever-changing phases. Each month, the Moon transitions through a series of distinct visual stages, providing a captivating and evolving spectacle in the night sky. But why do these phases occur, and how do specific phases of the […]